期刊
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
卷 120, 期 2, 页码 868-879出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2014JA020661
关键词
solar wind; fluctuations; statistics; magnetic fields
资金
- Delaware Space Grant College
- NASA [NNX10AN63H, NNX14AI63G, NNX15AB88G]
- NSF [AGS-1063439, AGS-1156094]
- Div Atmospheric & Geospace Sciences [1156094] Funding Source: National Science Foundation
The choice of interval of averaging in computing statistics of solar wind fluctuations is known to be a sensitive issue in which the need for adequate sampling statistics must be balanced with the complications of establishing an ensemble, given that the solar wind admits inhomogeneity, structure, and variability at its sources. Here we examine the quantitative dependence of interval of averaging (sample size) on estimates of basic statistics such as means, variances, and anisotropies of the measured interplanetary magnetic field.
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